Laser based lens analysis device and method
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United States of America Patent
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Sep 1, 2015
Grant Date -
Apr 9, 2015
app pub date -
Oct 8, 2013
filing date -
Oct 8, 2013
priority date (Note) -
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Abstract
A laser based lens analysis device comprising of a laser for emitting a laser beam, a beam expander for increasing the diameter of the laser beam, a beam collimator for collimating the increased diameter laser beam, an aperture for controlling the collimated laser beam and rendering the collimated laser beam to be substantially symmetrical, and a beam profiler for analyzing the laser beam characteristics after the controlled-symmetrical laser beam passes through the lens being tested. A method for lens analysis comprising the steps of emitting a laser beam, increasing the diameter of the laser beam, collimating the increased diameter laser beam, rendering the collimated laser beam substantially symmetrical, directing the symmetrical laser beam towards the lens being tested, and analyzing characteristics of the directed laser beam after the directed laser beam passes through the lens being tested.
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